Improvement in upsetting-presses



UNITED STATES PgTENT Ormea.

IMPROVEMENT IN UPSETTING-PRESSES.

Specification forming part of Letters Patent No. 55,674. dated June 19, 1866.

To all 'whom t't may concern:

Be it known that I, ANDREW KLOMAN, of the city of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Upsetting-Press; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a sectional View of the press. in elevation, through the line XX of Fig. 2. Fig. 2 is a plan or top view of the same. Fig. 3 1s a sectional view oi'l the press, also in plan, through the line V V ot' Fig. l. Fig. 4 is a transverse sectional view of the press, in elevation, through the line Y Y of Fig. 2, and

Fig. 5 is a similar view of the same through the line Z Z' of Fig. 2.

Similar letters of reference indicate like parts in all the figures.

The subject of this invention is a press for upsetting wrought-iron while heated into dit- 'lerent articles. v

My press consists, first, of an efficient stationary mold to coniine the heated iron when it is pressed, so that it will retain the countershape of said mold; secondly, of a movablel plunger or former acted upon by an enormous pressure in a peculiar manner hereinafter described, thirdly, of a mechanical device by which the motion of the plunger or movable former is regulated so as to give different speed and power with the same motion of the drivin gpower, either automatically or by hand; and, fourthly, in an improved arrangement for holding in a secured manner the cold part of the iron to be worked, to prevent it from being thrown out of shape by the enormous strain put upon it while the process of upsetting is going on.A

My process is intended'for upsetting' any kind of work; but for the purpose of illustration I have represented in my drawings and model the press which I have been using practically and extensively for the past eighteen months, with its tools adapted for upsetting the ends of Hat iron bars, so as to prepare them for links in the construction of wrought-iron bridges.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A is a cast-iron frame. b b are wrought-iron bars fitted in slotted lugs a o a c, and serve the purpose of strengthening the frame A.

B is the bed or lower part of mold. This bed is made either of cast-iron, wrought-iron, or steel, and is held perfectly stationary in the frame A by being capped over said frame, the two projecting ribs c c keeping it from sliding. The top part of the bed B is in the present case perfectly lat.

O is the top piece of the mold or former, the under part ot'which is ilat and perfectly smooth and has two projecting ledges, a a', the inner sides of which are slightly beveled, as seen in Fig. 4. The piece G can be made ot' wroughtiron, of cast-iron, or of steel; but I prefer it of wrought-iron. The top part of the piece O is formed of two plane surfaces, forming an angle with the under surface and sloping in opposite directions one from the other.

D Dl are two wedges which have the same pitch as the slanty part of the top of the piece C, so that they will have a good bearing on it and on the piece E. These two wedges D Dl are hung by projecting ledges sliding in grooved pieces e c, Figs. l and 5, bolted to the piece E.

S S are two screws with hand-wheels acting on the wedges D D and pushing them forward, so that they will force the piece C downward and hold it iirmly down.

F is a lever with counterpoise F and forks f f j" f', which keep the head-piece C always up against the wedges D D.

G G Fig. 2, are the side pieces oi' the mold, madeofcast-iron,wrought-iron,orsteel. Their inner edges are shaped as required for the mold, and their outer edges are made to correspond to and t nicely on the two projecting ledges d d of the piece C, so that when the piece G is down the said ledges d d will keep the pieces G G from spreading apart.

g' g', Fig. 2, are two pins driven in holes in the bed-plate B to prevent the side pieces, G G', from sliding out of place when the heated iron is introduced in the mold, and H H are lugs or projections oi' the piece B, against which the pieces G G rest, and that prevent them from being pushed forward when the iron is being acted on by the press.

I is the plunger or movable part of the mold. lt is dat, made of wrought-iron, cast-iron, or steel oi' the proper thickness and width, with its sides made to t in the space left between the ledges d d of the piece C, so that they will act as guides.

The end of the shover or plunger I is shaped so as to be the counterpart of the shape the heated iron is to be brought to; biitit does not come quite close to the pieces G G', Fig. 2, leaving the two spaces g"g", allowing any eX- eess of heated metal to find-an outlet iii them.

The former I has two points, i i, Fig. 3, which have for object the cuttingoli" of the ex cess ofheated metal forced outin the spacesg g.

J is a bolt sliding in suitable guides J' J", and to which the former I is bolted firmly.

K K are heavy iywheels fastened to a shaft, k k, and driven at a high speed by any siiitav ble gearing and motive power.

At the center ot' the shaft lr there is a cani or eccentric of a small throw-say from halfl an inch to one and a halt inch. This cam L works in asliding frame, I., and yoke M, so that' at each revolution of the fly-wheels K K '.he

yoke M will travel forward and then back ward of the throw of the said cam in the slides NN', placed top and bottoni to guide it in a straight direction.

The front oi" the yoke M, which is opposite to the bolt J, is so shaped, as is also the end of the bolt LLthat it presents two tlat surfaces@ forming an angle one with the other, leaving= a space between them larger at top than atl the bottom.

W is a wedge, made of wrought-iron, castiion, or steel, suspended by a chain, rope, or

other material, and hanging between the yoke M and the bolt J. The pitch ofthe wedge W is such as to correspond exactly and fit snugly lto both surfaces ofthe yoke M and bolt J.

P is a pulley with suitable gearing for lowering or hoisting', cit-her by hand or by steam power, the wedge lV, so as to regulate perfectly the working of the press, and, as it were, i'eed the plunger I forward with more or less rapidity. This feeding can be done by hand or aiitomaticall y by connecting the feed-gear ing with the motive power.

Q is a butt to receive the end p of the heated bar and prevent it from being pushed out ot' the mold by the action of the press. This but-t Q is strongly held to the body ofthe press by two or more bars, q q.

R R are two or more cross-pieces resting on the frame A, or 011 any suitable blocks, and held from rising by projecting at each end under the bars q q.

T is a plate resting on the cross-pieces RR, and serving as a bed for the cold part of the bai of iron to be worked. T' T' are hinges, to which is fastened a plate, S, so that when the said plate S is dropped on thc bar to be worked and the hooks r r' are closed any pressure applied on the end ofthe heated bar will not throw it out of shape.

Operation: The screws S S' bein g iinscrewed, the wedges D D' slide back, and the piece U, being free, will be lifted by the forks j j' f f, pushed up by the counterpoise F. The side pieces, G G', are gow free and can spread apart.

Thus the mold Kis open ready to receive the heated iron. The wedge Wis hoisted to its higl'iest position and the bolt J is pushed back until it touches the wedge W. The ily-wheels K K are now put in motion, and when they have a rapid rotary motion the press is ready to receive the heated bar. The bar of iron to be worked, properly heated at one end, is placed on the bed Tso that the heated portion will be in the mold, the plate S is closed over it, and the hooks r r locked. The side pieces, G G', are brought close to the heated bar and the top piece, C, is forced downward, and there held firmly by the screws S S being applied to the wedges D l). The mold is thus closed on the bar. The wedge Wis now allowed to descend, either gradually and regularly or all at once of its full pitch, either by hand or automatically by the press itself, and every time that the frame or yoke M retreats the wedge lN, by dropping farther and farther, will move for ward the bolt J and plunger l until it has reached the proper distance for iinishing the work, which is regulated either by putting a block to receive the wedge W and stop itsV downward course or by stopping it by the rope, chain, Ste., which suspends it. The mold is now open, as before', the bar removed, and the press again put in readiness for another operation, as before described.

What I claim as my invention, and desire' to secure by Letters Patent ot' the United States, is

l. The top piece, C, with its side projecting ledges, d d, and inclined top, when used in an upsetting-press, as described,and i'or the purpose specified.

2. The combination of the two wedgesD 1)', screws S S',t`rainc A, plate E, and piece C, arranged as specified, and for the purpose already described.

3. The combination ot' the two pieces G G' with the piece C and bed B, as described,and for the purpose specified.

el. The mode of forcing down and holding stationary the piece and of preventing the pieces G G' from spreading apart at one and the saine time by use and inea-ns ot' the screws S S', wedges D D', inclined top piece, C, plate E, and ledges d d.

5. The plunger I, having two points or projecting angles, t' t, and notches g g', as described, and for the purpose already mentioned.

6. The combination of the fly-wheels K K, shaft 7c 7c, cam L, box b, yoke M, wedge \V, and boltJ, for obtaining from a motive power comparatively small an enormous pressure and long throw in a short space of time, Variable in intensity t0 any desired degree of power or speed, by the single motion of the wedge 7.

7. The combination ofthe bars q q, piece Q, pieces R R, plates T and S, and pieces r rand T' T', as described, and for the purpose specified.

ANDREWT KLOMAN. lL. s]

Witnesses:

PHILIP R. KiNoAID, H. P. GEUGEMBURG. 

